Tyan Computer TYAN S1668 user manual System Resources, Timer & DMA Channel MAP

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6.0 System Resources

6.1. TIMER & DMA CHANNEL MAP

TIMER MAP:

TIMER Channel-0 system timer interrupt

 

TIMER Channel-1 DRAM REFRESH request

 

TIMER Channel-2 SPEAKER tone generator

DMA CHANNELS: DMA Channel-0 Available

 

DMA Channel-1 Available

 

DMA Channel-2 FLOPPY DISK adapter

 

DMA Channel-3 Available

 

DMA Channel-4 Cascade for DMA controller 1

 

DMA Channel-5 Available

 

DMA Channel-6 Available

 

DMA Channel-7 Available

6.2 INTERRUPT MAP

NMI:

Parity check error

IRQ (H/W)

0 System TIMER interrupt from TIMER-0

 

1 KEYBOARD output buffer full

2 Cascade for IRQ 9-15

3 SERIAL port 2

4 SERIAL port 1

5 PARALLEL port 2

6 FLOPPY DISK adapter

7 PARALLEL port 1

8 RTC clock

9 Available

10 Available

11 Available

12 Available

13 MATH co-processor

14 Primary IDE Channel

15 Secondary IDE Channel

S1668-ATX-001 http://www.tyan.com

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Contents Tyan S1668 Dual Pentium Pro ATX 440FX PCI-ISA System Board Table Of Contents Introduction Hardware Specifications/Features Environment Software SpecificationsBoard Installation VRM1 On Board Resource Setting .1 S1668 ATX Board LayoutCPU Clock Multiplier J21, J22, J23 and J24 Jumper Settings CPU Speed J27, J21, J22, J23, and J24Cmos Resest/Password Reset J41Default off Dram Voltage J2, J3, J14, J15, J4, J5, J16 and J17DefaultSpeaker Connector J43 Keylock Connector J44 Turbo Switch J47 Non-Turbo Mode Not SupportedSelection J28 & J29 InfraRed Interface Con4 and Con5 Reset Connector J45Turbo LED Connector J42 Flash Eeprom J32DefaultTurbo LED Connector Installation Soft Power On Switch J1 CPU FAN Power J49 and J50Speaker Connector Installation Turbo SwitchRefer to for Flash Eeprom upgrade procedures Hardware Reset Switch Connector InstallationVoltage ID for Older Pentium Pro CPUs J10 and J20 Dram InstallationBank0 Bank1 Bank2 Bank3 Total Memory TableCPU Installation VRM Installation Peripheral Device InstallationConnecting the Power Supply & On/Off Switch Entering Setup Bios ConfigurationControl Keys Getting Help Main Menu Setup Page menu/Option Page Setup MenuPower Management setup Standard Cmos setupBios features setup Chipset features setupStandard Cmos Setup Menu DateTime Drive a type/Drive B type Primary/Secondary Drive typeVideo Halt OnMemory Other Memory Expanded MemoryCPU Internal Cache/External Cache Boot SequenceSwap Floppy Drive Default value is Disabled Virus warningBoot Up NumLock Status Default value is On Boot Up Floppy SeekChipset Features Setup ROM ISA Bios Power Management Setup Award SOFTWARE, INC Power ManagementDoze Mode Standby ModePower Down Activities PCI Slot Configuration PCI/ISA PnP Resources Controlled ByIRQ n assigned to Legacy ISAIntegrated Peripherals Load Setup Defaults ROM ISA Bios Cmos Setup Utility Award SOFTWARE, INC IDE HDD Auto Detection Flash Writer Utility Page Flash Memory Writer Flash Memory Writer Utility Screen AwardSystem Resources Timer & DMA Channel MAP